diff --git a/webapp/models/Nft.php b/webapp/models/Nft.php
index 533836c8..98aa21d3 100644
--- a/webapp/models/Nft.php
+++ b/webapp/models/Nft.php
@@ -128,6 +128,7 @@ class Nft extends BaseModel
                 array_push($nftList, $row);
             }
         );
+        error_log(json_encode($nftList));
         return $nftList;
     }
 
diff --git a/webapp/services/NftService.php b/webapp/services/NftService.php
index 526992e2..d00ae375 100644
--- a/webapp/services/NftService.php
+++ b/webapp/services/NftService.php
@@ -84,7 +84,12 @@ class NftService extends BaseService {
         self::loadNft($openId, $name);
         $nftHash = getXVal(self::$userData[$openId], $name . 'Hash', array());
         $nftDb = getXVal($nftHash, $tokenId);
-        return $nftDb && $nftDb['owner_address'] == $openId;
+        //return $nftDb && $nftDb['owner_address'] == $openId;
+        if (empty($nftDb)) {
+            return null;
+        }
+        return $nftDb['owner_address'] == LOCK_CONTRACT_ADDRESS &&
+                                       $nftDb['last_lock_address'] == $openId;
     }
 
     private static function loadNft($openId, $name)